Oil burner



Mmh 2 192s. 1,575,480

O. H. HERMAN OILy BURNER Filed Oct. 1l, 1922 r gf L Patented Mar. 2i, 1926.

UNITED STATES OSCAR H. HERMAN, OF COUNCIL BLUFFS, IOWA.

011. BURNER.

Application filed October 11, 1922. Serial No. 593,751.

T0 all whom t may concern.:

Be it known that I, OSCAR H. HERMAN, a citizen of the United States, residing at Council Bluffs, in the county of Pottawattamie and State of Iowa, have invented certain new and useful Improvements in Oil Burners; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The primary object of this invention is the provision of means for utilizing oil as fuel in the generation of steam or for heating generally where a hot fiame is required.

In accordance with the present invention, a casing or conduit is provided for the passage of the oil therethrough from a suitable source of supply. A steam pipe extends through said casing or conduit to initially heat the oil. A steam casing or conduit is in communication with said steam pipe, and an oil pipe passes therethrough and receives the heated oil from the oil casing or conduit. A mixing chamber receives the heated oil and steam, and airis supplied thereto for mixing with the oil and steam preliminary to the discharge of the mixture into the combustion chamber, the steam and oil pipes having regulating valves.

Other objects and advantages will be apparent and suggest themselves as the nature of the invention is understood.

Thile the drawings illustrate an embodiment of the invention it is to be understood that in adapting the same to meet different conditions and requirements, various changes in the form, proportion and minor details of construction may be resorted to without departing from the nature of the invention.

Referring to the accompanying drawings forming` a part of the application,

Figure 1 is a view showing the invention primarily in elevation and as applied to a steam boiler and its setting, the latter being partly shown in section.

Figure 2 is an enlarged sectional detail of the mixing chamber, the steam casing or conduit, the oil pipe therein and a portion of the oil casing. or conduit andthe steam pipe therein, and

Figure 3 is a sectional detail on the line 3 3 ofV Figure 2.

lby like reference characters.

The numeral 1 designates a steam boiler and 2 the setting therefor including the firebox or combustion chamber 3. An oil tank 4 is shown mounted upon the setting 2 and is illustrative of a source of oil supply and the same may be disposed in any preferred or convenient position. An oil pipe 5 leads from the tank t and connects with the upper end of a casing or conduit 6 which is provided at its lower end with a drain cock 7 A steam pipe 8 connectswith the dome of the boiler 1 and extends through the oil casing or conduit G and passes laterally therefrom near the lower end thereof and connects with the outer end of a steam casing or conduit 9. An oil pipe 10, extending from the lower portion of the oil casing or conduit 6, passes through the steam casing or conduit 9 whereby the oil passing therethrough is further heated preliminary to its discharge into a mixing chamber 11 in which the oil and steam are mixed with air preliminary to the discharge of the mixture into the combustion chamber 3. An air tubeV 12 is set into the front wall of the combustion chamber and receives the steam casing or conduit 9. The tube 12 is sufiiciently large to admit of free passage of air therethrough and its ends preferably flare. The mixing chamber 11`is mounted upon the inner end of the steam casing or conduit 9 and is provided in its outer: end with a plurality of openings 13 for the admission of air, said openings being disposed about the steam casing or conduit 9 and having an inward inclination so as to direct the incoming jets of air towards the center of the chamber so as to mix with the oil and steam preliminary to the discharge of the mixture into the combustion chamber. i

The steam pipe 8 is provided with a valve 14k adjacent its connection with the boiler 1 and a valve 15 intermediate the oil' casing 6 and the steam casing 9, whereby to admit of proper control or the shutting off of the steam. The oil pipe 5 is provided with a valve 16' and the oil pipe 10 with a valve 17 y for proper control or the shutting off of the oil, as required.

lVhat'is claimed is: the casing below that portion of the steam 10 A burner of the class described comprising pipe located within the casing, said fuel supa vertically disposed casing of relatively ply pipe entering said steam pipe at a point large girth, a steam pipe depending into spaced from the casing, a control valve for 5 said casing and extending outwardly through the steam pipe located outwardly of the casthe side of the casing intermediate the ends ing and steam pipe, and a control Valve for 15 of the latter, the lower portion of the steam the fuel pipe on said olfset portion.4 pipe outwardly of the casing being offset, a e In testimony whereof I affix my signature. fuel supply pipe extending laterally from OSCAR H. HERMAN. 

